Ball-bearing.



J. MODLER.

BALL BEARING APPLICATION rum saw l8. 1911.

Patented Nov 18. 1913 1 EZZEETB SHEET 1,

3v Ms E r NESSES as? i J. MODLER.

BALL BEARING.

APPLIOATION FILED SEPT.1B, 1911.

1,078,940. Patented Nov. 18, 1913.

WITNESSES R,

J. MODLER.

BALL BEARING.

APPLICATION FILED SEPT.18, 1911.

Patented Nov. 18, 191

WITNESSES INVENTOR.

J. MODLER.

BALL BEARING.

APPLIGATION FILED SEPT.18, 1911;

rtented Nov. 18, 1913.

WITNESSt \Z Folkw- BY HIS QTTQRNEYS,

JOHANNIMODLER, OF SCHWEINFURT, GERMANY.

BALL-BEARING.

Specification 0! Letters Patent.

Patented Nov. 18, 1 913.

1 Application filed September 18, 1911. Serial No. 649,780.

To all whom it may concern:

Be it known that I, JOHANN Momma, of Schweinfurt-on-thoMam, Germany,have invented certain new and useful Improvements in Ball-Bearings, ofwhich the following is a specification.

My invention relates to ball bearmgs.

It is particularly adapted to that form of ball bearing in which a cageis used to space the balls, so that in rotating they will riot come incontact with each other, and my 111- vention' relates more particularlyto this means'for spacingthe balls. I have found that by constructing aball bearing in which it is our ecessary to use bolts, rivets, screws orother means for holding the parts of the cage together, the separatingcages have heretofore been made in several parts, that I am enabled toconstruct a hearing which rmits me to have the maximum number oi illspossible without having the balls touch one another in their rotation. I

By constructing a ball bearing with my improved cage, or separatingmeans, I am enabled to make a ball bearing having the greatest loadcarrying capacity possible without having the disadvantage of the ballstouching each other in their rotation.

My invention also has the advantage 0 great economy in manufacturing, inthat it does away with the use of screws, bolts, rivets, &c.,,and thetime'rcquirod to assemble a hearing when such means are used as justenumerated. I

The important feature of my invention is the construction of a bearinghaving a cage made of asingle piece of material, which cage may initselfpcrform all of the functions of separating, the balls, or may holdin place-additional means for separating the balls without the use ofbolts,-"nuts, rivets,

bearing and o the inner rin each of the rings a and 6 having on theiradjoining faces ball races as shown. In order to permit the ball 0 to beinserted into the races, I rovide the grooves d and c in the adjoiningrims of the ball races, the groove cl on the outer ring a and the groovee on the inner ring I). These grooves when brought into register, asshown in Figs. l to 6. enable the ball 0 to be inserted into the ballraces.

. My impr ved cage, as shown in Figs. 1 to 6 consists of the metal cage9 formed in the shape of an L as shown in Figs. 1 and a, and, having theopenings It through which the ball 0 partially projects. These openingsare of less diameter than the diameter of the balls The openings k arereferably beveled on the side of the cage acing the halls. In theconstruction of this hearing, I make the opening caused by bringing thegrooves d and e of the outer and inner ring into register, which I havedenoted as f in Figs. 1 and 2, so that it is equal to the diameter ofthe ball 0, plus the thickness of the cage 9. As shown in Figs. 3 and 4,that part of the cage 9, which is in the space between the grooves d ande is bent back so as to permit the ball 0 to be placed into the races.'In Fig. 3 I have shown the position .of the ball in several differentpositions while it is being inserted. into the races. The space which Ihave enoted k in Fig. 3, which is the oint a which the entrance groovesenter t e raceways, I make the some as the diameter of the ball, orpreferably a trifle less, and force the ball through the space. When theballs 0 are all in place in he races, that part of the cage 9 which hasbeen on the side of the ball with the grooves through which the ballshave been inserted, as shown in the right of the Figs. 1 and 3, is bentover so as to engage with the outer surface of the balls 0, as shown inFig. 5. The openings IL in the cage 9 are so arranged as to space theballs 0 sufliciently far apart, so that they will not touch one anotherin no tation, but preferably so that the maximum number of balls may beplaced into the bearing. In Fig. 2 I have shown one bull and a portionof two others as they are spaced in the preferred form of my hearing.

' separate In Figs. 7, 8, 9. 10 and 11, I show another form of myinvention in which the cage is bent so that the openings it in the cageare on the opposite sides of the adjacent balls, 1

and that part of the cage between the openings h asses between the ballsand forms a separating wall, m. In this form the cage is provided withthe flaps Is, as shown in Fig. 10, which are bent around the oppositesides of the ball, as shown in Fig. 8. The method of inserting the ballsis the same in this form as in Figs. 1 to 6, and is shown in detail inFig. 7.

In Figs. 12, 13 and 14 I have shown a bearin having the same form andconstruction 0 cage as shown in Figs. 1 to 6 except that I have cut outa portion of the cage g, so as to 1provide each of the balls with 9.

ap 0, adapted to be bent around the balls to embrace them as shown.

In Figs. 15, 16, 17 and 18, I show a bearixg having the same form asthat in the prec ing Figs. 1 to 6, and 12 to 14, and as it is sometimesdesirable to have the balls almost completely surrounded to keep outdirt, &c., I have provided supplementary cages of solid pieces ofmaterial with hemispherical cavities. In Fig. 18 I show the two membersp and q having the hemispherical openings which form the opening 1' forthe ball. In assembling the bearing constructed in this form I bend partof the cage, as shown by the letter a in Fig. 15; place therein themember g, and after inserting each of the balls, as shown in Fig. 15 Iplace over the balls the member p, and fold over it that member of thecage which I have marked 7:.

Heretofore in the construction of bearings in which two members wereused to form, a ea c for the balls they were held together by boIts,screws, &c., but by use of my improved cage the use of any screws,clamps, bolts,

&c., is dispensed with, the advantage of this being that the openings7*--- for the balls may be placed very close together, as there is nonecessity for anything passing through the m t-erial between theopenings, in order to hold the cage together.

The modification shown in Figs. 19, 20 and 523i consists of the cage g,having flaps 2 2 arranged alternately so as to engage the opposite sidesof adjacent balls. This cage is also provided with the o enings hfof-the balls. In addition I proviriia a supplemental cage .2: adaptedto engage with the opposite side of adjacent balls, so that thesupplemental cage a: will engage on the opposite side of the same ballwhich the flap e of the cage engages. In assembling this hearing, Iplace the cage {1 having openings I: and flaps s in position and insertevery other ball, after which I place the supplemental cage a: in.position, insert the additional balls,

' the balls are inserted until the ball and then bend over the flaps 2of the cage g. In this way the supplemental cage 00 is held in position,and the balls areseparated as desired.

In Figs. 23 to 25 inclusive, I have shown my invention as applied to adouble row bearing, in which the inner and outer rings contain two ballraces. In this form I provide the ordinary grooves d and e for each ofthe races, but they are preferably arranged so that when the grooves dand e for one row of-balls are in're 'ster, the,

grooves for the other row will e out of register and form my cage asshown in Fig. 25, with the flaps r for inclosing the balls. In this formI also provide the member 0' having openings p, as shown in Fi 25,arranged as shown, which member 0 orms a supplemental separating cage.In this form I also provide the openings h in the cage 9 for the balls0. This bearing is assembled by bringing the grooves d and e intoregister and placing the balls into position in one row, folding overthe flap 1'', placing into osition the supplemental cage 0' and thenbringing the grooves for the other row into register, and placing theballs into position and bending over the other flap r on the other side.

In Figs. 26 to 28 inclusive I have shown another formof my invention asapplied to a double row bearing, in which I omit the auxiliary ca 0 anduse only the cage having the aps 1" and the openings 12.. In I balls inone row, and on the inner side of the balls in the other row. In' thisform of invention the bearin is assembled as shown in Fig. 27, the cageing put into osition, in one row 'have all been placed, when the flap ris bent around so as to'inclose these balls, and then the balls in theother race arcinserted. until they are alI in place; when'the flaps rfor this side of the hearing are turned over the balls so as to inclosethem;

While I have shown and described several modifications of my invention,anyone skilled in the art could make other modifications withoutdeparting from the spirit of my invention.

I claim:

In a ball-bearing, the combination of an inner and outer ring havingball races in their adjoining surfaces, a one-piece separator inclosingthe balls on both side faces, grooves in the slots of such racewaysadapted to be brought into register to permit .the insertion of theballs into the raceways, the space between the bottom of said grooveswhen brought into register being equal, for

a portion of the distance toward the mu I name to {his spwrifhyafiun, inPm;- pmsence of races, to the diameter, of the ball plus the. twosuhsnmmn thickness of the cage, said grooves entering the raceways at apoint above the bottom of \ViLxWsM-s: 5 the raceway, substantially asset forth. 1'. 11mm,

In testimony whereof, I have signed my} CUR? HAG-NEE.

A MUDLER.

